User's Manual
Mobile WiMAX Outdoor RAS SPI-2210 System Description/Ed.05
© SAMSUNG Electronics Co., Ltd. 3-35
3.3.3.7 Loader
Loader manages the entire process from the start of OS to the previous step of ULM
running (pre-loading). After that, if ULM is actuated after the initialization script is
executed and the registration and loading function is performed, the loader monitors the
ULM block.
Loader Main Functions
System time setting
Before NTP-based synchronization, the system time is set by receiving the Time of
Date (ToD) from a GPS receiver.
Outdoor SPI-2210 registration and loading
Registration of the outdoor SPI-2210 to the Registration Server (RS)
Determination of the loading method
1) Loading of most recent version through version comparison: loading through
self non-volatile storage or remote IS
2) Loading through console port (The process to register the ACR to the RS is
skipped.)
Backing up and restoring the software image and the PLD
Loader saves the software image and the PLD of the latest version in its own
nonvolatile storage and restores it as the corresponding information when required.
(In case of PLD, the operator sends a command for backup.)
ULM monitoring
Loader monitors whether the ULM block operates normally and if it is abnormal, this
restarts it.
Loader Implementation
Loader is implemented on the MMA-S and all lower board as shown below.
Figure 3.23 Loader Block
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